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gnathostoma |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Gnathostoma \Gna*thos"to*ma\, n. pl [NL., from Gr ? the jaw + ?, ?, the mouth.] (Zo["o]l.) A comprehensive division of vertebrates, including all that have distinct jaws, in contrast with the leptocardians and marsipobranchs (Cyclostoma), which lack them [Written also {Gnathostomata}.]
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